/* Animaciones / utilidades */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.floating {
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.gradient-bg {
  background: linear-gradient(135deg, #f3f8fd 0%, #e8f5f0 50%, #e6f2fa 100%);
}

/* Tarjetas */
.card-hover {
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}
.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}
@media (max-width: 768px) {
  .card-hover:hover {
    transform: none;
  }
}

/* Botones */
.btn-primary,
.btn-secondary {
  background: linear-gradient(135deg, #1e88e5 0%, #26a69a 100%);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(30, 136, 229, 0.3);
}
.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(30, 136, 229, 0.5);
  background: linear-gradient(135deg, #1565c0 0%, #00695c 100%);
}

/* Badge recomendado */
.recommended-badge {
  background: linear-gradient(135deg, #1e88e5 0%, #26a69a 100%);
  box-shadow: 0 4px 15px rgba(30, 136, 229, 0.4);
  animation: pulse-badge 2s infinite;
}
@keyframes pulse-badge {
  0%,
  100% {
    transform: translateX(-50%) scale(1);
  }
  50% {
    transform: translateX(-50%) scale(1.05);
  }
}

/* Scroll suave */
html {
  scroll-behavior: smooth;
}
@media (max-width: 768px) {
  #about .grid {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  #about .grid > div:first-child {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  #about .grid > div:first-child .space-y-6 {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  #about .grid > div:first-child .w-96 {
    margin: 0 auto;
  }
}